Results 81 to 90 of about 56,706 (218)
Origin of Silicic Magmatism at the Katla Volcanic Complex, South Iceland
Abstract The Katla volcano is a bimodal caldera complex within Iceland's basalt‐dominated Eastern Volcanic Zone. To unravel the petrogenesis of silica‐rich rocks from Katla, we provide new δ18O values for almost 60 basaltic, intermediate, and high‐silica eruptive rocks, including a number of partially melted felsic xenoliths.
Valentin R. Troll+11 more
wiley +1 more source
Constraining the primordial initial mass function with stellar archaeology
We present a new near-field cosmological probe of the initial mass function (IMF) of the first stars. Specifically, we constrain the lower-mass limit of the Population III (Pop III) IMF with the total number of stars in large, unbiased surveys of the ...
Bromm, Volker+3 more
core +2 more sources
The Relativized A Priori, the Historical A Priori, and the Symbolic Form
ABSTRACT Recent work in philosophy of science has suggested that scientific paradigms in the wake of revolutions can be conceived as relativized a priori frameworks. In this paper, I put these accounts in dialog with two accounts of broadly “cultural” accounts of the relativized a priori in the history of philosophy: Ernst Cassirer's account of ...
Sabina Vaccarino Bremner
wiley +1 more source
Galactic archaeology through the lens of asteroseismology
Presentation given at the conference Bulge40: "The Galactic bulge and beyond: A conference in honor of Mike Rich", 18-22 September 2023, Elba Island (Italy)
openaire +2 more sources
Stellar spectra emulators often rely on large grids and tend to reach a plateau in emulation accuracy, leading to significant systematic errors when inferring stellar properties.
Tomasz Różański+2 more
doaj +1 more source
Starry Messages: Searching for Signatures of Interstellar Archaeology [PDF]
Searching for signatures of cosmic-scale archaeological artifacts such as Dyson spheres or Kardashev civilizations is an interesting alternative to conventional SETI. Uncovering such an artifact does not require the intentional transmission of a signal on the part of the original civilization.
arxiv
Stellar Archaeology -- Exploring the Universe with Metal-Poor Stars
The abundance patterns of the most metal-poor stars in the Galactic halo and small dwarf galaxies provide us with a wealth of information about the early Universe.
Aoki+148 more
core +1 more source
This study uses a multidisciplinary approach to model the habitat use and site occurrence of harbour porpoises, identifying areas where they were seen spending most time in the Skerries and Causeway Special Area of Conservation. The results show that porpoises are most concentrated within 500 m of the shoreline, particularly near headlands with coarse ...
Robert Mzungu Runya+4 more
wiley +1 more source
The GALAH Survey: using galactic archaeology to refine our knowledge of TESS target stars [PDF]
Jake T. Clark+31 more
openalex +1 more source
Asteroseismology And Galactic Archaeology
The Milky Way is a complex system, with dynamical and chemical substructures, where several competing processes such as mergers, secular evolution, gas accretion and gas take place. To study how such a giant spiral galaxy was formed and evolved, we need to reconstruct the sequence of its main formation events with high temporal resolution ...
openaire +2 more sources